Diy Cinder Block Planter Box . At first, you will need to have a few or more concrete cinder blocks, spray paints, stencils (could be different patterns), wire mesh, some fabrics, potting soils, and suitable. How to make a diy concrete block planter box step 1. Pin by Chuck Woolery on Granite recycling projects Succulents planter from www.pinterest.ca Wash the concrete blocks use a power washer to wash the blocks, and add tsp to the soap container in the washer. Bunnings diy brick planter box. Dig the space and level up using stakes and then add the cinder blocks all around.